// Copyright (C) 2010 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.client.patches;
import com.google.gerrit.client.ErrorDialog;
import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.account.Util;
import com.google.gerrit.client.rpc.GerritCallback;
import com.google.gerrit.client.ui.ListenableAccountDiffPreference;
import com.google.gerrit.client.ui.NpIntTextBox;
import com.google.gerrit.reviewdb.client.AccountDiffPreference;
import com.google.gerrit.reviewdb.client.AccountDiffPreference.Whitespace;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.event.logical.shared.HasValueChangeHandlers;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.uibinder.client.UiHandler;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FocusWidget;
import com.google.gwt.user.client.ui.HasWidgets;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.Widget;
import com.google.gwtjsonrpc.common.VoidResult;
public class PatchScriptSettingsPanel extends Composite implements
HasValueChangeHandlers<AccountDiffPreference> {
private static MyUiBinder uiBinder = GWT.create(MyUiBinder.class);
interface MyUiBinder extends UiBinder<Widget, PatchScriptSettingsPanel> {
}
private ListenableAccountDiffPreference listenablePrefs;
private boolean enableIntralineDifference = true;
private boolean enableSmallFileFeatures = true;
@UiField
ListBox ignoreWhitespace;
@UiField
NpIntTextBox tabWidth;
@UiField
NpIntTextBox colWidth;
@UiField
CheckBox syntaxHighlighting;
@UiField
CheckBox intralineDifference;
@UiField
ListBox context;
@UiField
CheckBox whitespaceErrors;
@UiField
CheckBox showTabs;
@UiField
CheckBox manualReview;
@UiField
CheckBox skipDeleted;
@UiField
CheckBox skipUncommented;
@UiField
CheckBox expandAllComments;
@UiField
CheckBox retainHeader;
@UiField
Button update;
@UiField
Button save;
/**
* Counts +1 for every setEnabled(true) and -1 for every setEnabled(false)
*
* The purpose is to prevent enabling widgets too early. It might happen that
* setEnabled(false) is called from this class and from an event handler
* of ValueChangeEvent in another class. The first setEnabled(true) would then
* enable widgets too early i.e. before the second setEnabled(true) is called.
*
* With this counter the setEnabled(true) will enable widgets only when
* setEnabledCounter == 0. Until it is less than zero setEnabled(true) will
* not enable the widgets.
*/
private int setEnabledCounter;
public PatchScriptSettingsPanel(ListenableAccountDiffPreference prefs) {
listenablePrefs = prefs;
initWidget(uiBinder.createAndBindUi(this));
initIgnoreWhitespace(ignoreWhitespace);
initContext(context);
if (!Gerrit.isSignedIn()) {
save.setVisible(false);
}
KeyPressHandler onEnter = new KeyPressHandler() {
@Override
public void onKeyPress(KeyPressEvent event) {
if (event.getNativeEvent().getKeyCode() == KeyCodes.KEY_ENTER) {
save();
}
}
};
tabWidth.addKeyPressHandler(onEnter);
colWidth.addKeyPressHandler(onEnter);
display();
}
@Override
public HandlerRegistration addValueChangeHandler(
ValueChangeHandler<AccountDiffPreference> handler) {
return super.addHandler(handler, ValueChangeEvent.getType());
}
public void setEnabled(final boolean on) {
if (on) {
setEnabledCounter++;
} else {
setEnabledCounter--;
}
if (on && setEnabledCounter == 0 || !on) {
for (Widget w : (HasWidgets) getWidget()) {
if (w instanceof FocusWidget) {
((FocusWidget) w).setEnabled(on);
}
}
toggleEnabledStatus(on);
};
}
public void setEnableSmallFileFeatures(final boolean on) {
enableSmallFileFeatures = on;
if (enableSmallFileFeatures) {
syntaxHighlighting.setValue(getValue().isSyntaxHighlighting());
} else {
syntaxHighlighting.setValue(false);
}
toggleEnabledStatus(save.isEnabled());
}
public void setEnableIntralineDifference(final boolean on) {
enableIntralineDifference = on;
if (enableIntralineDifference) {
intralineDifference.setValue(getValue().isIntralineDifference());
} else {
intralineDifference.setValue(false);
}
toggleEnabledStatus(save.isEnabled());
}
private void toggleEnabledStatus(final boolean on) {
intralineDifference.setEnabled(on & enableIntralineDifference);
syntaxHighlighting.setEnabled(on & enableSmallFileFeatures);
final String title =
enableSmallFileFeatures ? null : PatchUtil.C.disabledOnLargeFiles();
syntaxHighlighting.setTitle(title);
}
public AccountDiffPreference getValue() {
return listenablePrefs.get();
}
public void setValue(final AccountDiffPreference dp) {
listenablePrefs.set(dp);
display();
}
protected void display() {
final AccountDiffPreference dp = getValue();
setIgnoreWhitespace(dp.getIgnoreWhitespace());
if (enableSmallFileFeatures) {
syntaxHighlighting.setValue(dp.isSyntaxHighlighting());
} else {
syntaxHighlighting.setValue(false);
}
setContext(dp.getContext());
tabWidth.setIntValue(dp.getTabSize());
colWidth.setIntValue(dp.getLineLength());
intralineDifference.setValue(dp.isIntralineDifference());
whitespaceErrors.setValue(dp.isShowWhitespaceErrors());
showTabs.setValue(dp.isShowTabs());
skipDeleted.setValue(dp.isSkipDeleted());
skipUncommented.setValue(dp.isSkipUncommented());
expandAllComments.setValue(dp.isExpandAllComments());
retainHeader.setValue(dp.isRetainHeader());
manualReview.setValue(dp.isManualReview());
}
@UiHandler("update")
void onUpdate(ClickEvent event) {
update();
}
@UiHandler("save")
void onSave(ClickEvent event) {
save();
}
private void update() {
if (colWidth.getIntValue() <= 0) {
new ErrorDialog(PatchUtil.C.illegalNumberOfColumns()).center();
return;
}
AccountDiffPreference dp = new AccountDiffPreference(getValue());
dp.setIgnoreWhitespace(getIgnoreWhitespace());
dp.setContext(getContext());
dp.setTabSize(tabWidth.getIntValue());
dp.setLineLength(colWidth.getIntValue());
dp.setSyntaxHighlighting(syntaxHighlighting.getValue());
dp.setIntralineDifference(intralineDifference.getValue());
dp.setShowWhitespaceErrors(whitespaceErrors.getValue());
dp.setShowTabs(showTabs.getValue());
dp.setSkipDeleted(skipDeleted.getValue());
dp.setSkipUncommented(skipUncommented.getValue());
dp.setExpandAllComments(expandAllComments.getValue());
dp.setRetainHeader(retainHeader.getValue());
dp.setManualReview(manualReview.getValue());
listenablePrefs.set(dp);
}
private void save() {
update();
if (Gerrit.isSignedIn()) {
persistDiffPreferences();
}
}
private void persistDiffPreferences() {
setEnabled(false);
listenablePrefs.save(new GerritCallback<VoidResult>() {
@Override
public void onSuccess(VoidResult result) {
setEnabled(true);
}
@Override
public void onFailure(Throwable caught) {
setEnabled(true);
}
});
}
private void initIgnoreWhitespace(ListBox ws) {
ws.addItem(PatchUtil.C.whitespaceIGNORE_NONE(), //
Whitespace.IGNORE_NONE.name());
ws.addItem(PatchUtil.C.whitespaceIGNORE_SPACE_AT_EOL(), //
Whitespace.IGNORE_SPACE_AT_EOL.name());
ws.addItem(PatchUtil.C.whitespaceIGNORE_SPACE_CHANGE(), //
Whitespace.IGNORE_SPACE_CHANGE.name());
ws.addItem(PatchUtil.C.whitespaceIGNORE_ALL_SPACE(), //
Whitespace.IGNORE_ALL_SPACE.name());
}
private void initContext(ListBox context) {
for (final short v : AccountDiffPreference.CONTEXT_CHOICES) {
final String label;
if (v == AccountDiffPreference.WHOLE_FILE_CONTEXT) {
label = Util.C.contextWholeFile();
} else {
label = Util.M.lines(v);
}
context.addItem(label, String.valueOf(v));
}
}
private Whitespace getIgnoreWhitespace() {
final int sel = ignoreWhitespace.getSelectedIndex();
if (0 <= sel) {
return Whitespace.valueOf(ignoreWhitespace.getValue(sel));
}
return getValue().getIgnoreWhitespace();
}
private void setIgnoreWhitespace(Whitespace s) {
for (int i = 0; i < ignoreWhitespace.getItemCount(); i++) {
if (ignoreWhitespace.getValue(i).equals(s.name())) {
ignoreWhitespace.setSelectedIndex(i);
return;
}
}
ignoreWhitespace.setSelectedIndex(0);
}
private short getContext() {
final int sel = context.getSelectedIndex();
if (0 <= sel) {
return Short.parseShort(context.getValue(sel));
}
return (short) getValue().getContext();
}
private void setContext(int ctx) {
String v = String.valueOf(ctx);
for (int i = 0; i < context.getItemCount(); i++) {
if (context.getValue(i).equals(v)) {
context.setSelectedIndex(i);
return;
}
}
context.setSelectedIndex(0);
}
}